﻿using BLL;
using DAL;
using System;
using System.Configuration;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Web;
using System.Web.SessionState;

namespace WeChat.Ajax
{
    /// <summary>
    /// UploadImage 的摘要说明
    /// </summary>
    public class UploadImage : IHttpHandler, IRequiresSessionState
    {

        public void ProcessRequest(HttpContext context)
        {
            string openid = context.Session["openid"] == null ? "" : context.Session["openid"].ToString();
            //string openid = "RQHA+S1ZVGV1NJF348C1-0Q";
            if (string.IsNullOrEmpty(openid))
            {
                openid = context.Request.Form["openid"];
            }

            var request = HttpContext.Current.Request;
            string funcName = context.Request.Form["funcName"];
            string bs64images = context.Request.Form["bs64images"];
            string dirName = "images";
            string imageUrl = string.Empty;
            string Run = string.Empty;
            ApplicationLog.Write("openid=" + openid+ ",funcName=" + funcName+ ",bs64images=" + bs64images.Length);
            try
            {
                switch (funcName)
                {
                    case "Images":
                        ApplicationLog.Write("准备上传");
                        try
                        {

                            DataTable dataTable = ReBLL.GetRyxx(openid);
                            if (dataTable.Rows.Count > 0)
                            {

                                if (bs64images == null)
                                {
                                    Run = "-1";
                                }
                                string result = bs64images;
                                int index = -1;
                                //判断是不是base64文件类型
                                index = bs64images.IndexOf("base64,");
                                if (index != -1)
                                {
                                    index += 7;
                                    //string fileName = DateTime.Now.ToString("yyyyMMddHHmmssffff_");
                                    string fileName = dataTable.Rows[0]["rybh"].ToString() + ".png";
                                    string dir = "/" + dirName + "/facimages";
                                    string dirL = "/" + dirName + "/facimages/images/";
                                    imageUrl = dirL + fileName;
                                    string filePath = HttpContext.Current.Server.MapPath(dir);
                                    string filePath1 = HttpContext.Current.Server.MapPath(dirL);
                                    if (!Directory.Exists(filePath))
                                    {
                                        Directory.CreateDirectory(filePath);
                                    }
                                    string fileSavePath = Path.Combine(filePath, fileName);
                                    string fileSavePath1 = Path.Combine(filePath1, fileName);
                                    //判断上传文件是否重名，若重名，则删除原来文件覆盖上传
                                    if (File.Exists(fileSavePath))
                                    {
                                        File.Delete(fileSavePath);
                                    }
                                    if (File.Exists(fileSavePath1))
                                    {
                                        File.Delete(fileSavePath1);
                                    }
                                    //将数据转换为二进制字节数组
                                    var imgbit = Convert.FromBase64String(bs64images.Substring(index));
                                    //保存图片
                                    using (Image image = Image.FromStream(new MemoryStream(imgbit)))
                                    {
                                        image.Save(fileSavePath, ImageFormat.Png);
                                    }

                                    ApplicationLog.Write("上传照片成功");
                                    MakeThumbnail(fileSavePath, fileSavePath1, 400, 400, "H");
                                    int num = ReBLL.UpdateImages(dataTable.Rows[0]["RYID"].ToString(), imageUrl);
                                    if (num > 0)
                                    {
                                        string rfkh = dataTable.Rows[0]["rfkh"].ToString();
                                        string equipment = UserMngBLL.isVerification_face_Machine_Number(rfkh);
                                        if (equipment != "" && equipment != null)
                                        {
                                            //修改机号
                                            UserMngBLL.Update_equipment(rfkh, equipment);
                                            //修改心跳协议
                                            UserMngBLL.JudgeMachine(equipment, "1", "&1");
                                        }
                                    }
                                    Run = "1";

                                    var version = IdentityDAL.getIsFeat();
                                    if (version != "False")
                                    {
                                        #region 特征值入库
                                        string result1 = "服务器时间=" + DateTime.Now.ToString();
                                        ApplicationLog.Write("公众号采集人脸信息调用exe程序," + result1);
                                        try
                                        {
                                            Process m_Process = new Process();
                                            string face_search_path = ConfigurationManager.ConnectionStrings["face_search_path"].ToString();
                                            ApplicationLog.Write("face_search_path路径=" + face_search_path);
                                            m_Process.StartInfo.FileName = face_search_path + @"\face_search.exe";
                                            ApplicationLog.Write("FileName=" + m_Process.StartInfo.FileName);
                                            m_Process.StartInfo.WorkingDirectory = face_search_path;
                                            m_Process.StartInfo.Arguments = " ./face_search -i src_face_jpg_folder -A dst_face_jpg_folder -o ./output";
                                            m_Process.Start();

                                        }
                                        catch (Exception ex)
                                        {
                                            ApplicationLog.Write("公众号采集人脸信息调用额exe程序异常信息=" + ex.Message);
                                            throw;
                                        }

                                        #endregion
                                    }



                                }
                                else
                                {
                                    Run = "-3";
                                }

                            }

                            else
                            {
                                Run = "-2";
                            }


                        }
                        catch (Exception ex)
                        {
                            ApplicationLog.Write("add_setUserInfo:" + ex.Message);
                        }
                        break;
                    case "LoadImages":
                        DataTable dataTable1 = ReBLL.GetRyxx(openid);
                        if (dataTable1.Rows.Count > 0 && openid != "")
                        {
                            Run = dataTable1.Rows[0]["IMAGES"].ToString();
                        }
                        break;
                }
            }
            catch (Exception ex)
            {
                ApplicationLog.Write("上次照片异常：" + ex.Message);
            }


            context.Response.Write(Run);
        }
        /// <summary>
        /// 生成缩略图
        /// </summary>
        /// <param name="originalImagePath">源图路径（物理路径）</param>
        /// <param name="thumbnailPath">缩略图路径（物理路径）</param>
        /// <param name="width">缩略图宽度</param>
        /// <param name="height">缩略图高度</param>
        /// <param name="mode">生成缩略图的方式</param>    
        public static void MakeThumbnail(string originalImagePath, string thumbnailPath, int width, int height, string mode)
        {
            System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalImagePath);

            int towidth = width;
            int toheight = height;

            int x = 0;
            int y = 0;
            int ow = originalImage.Width;
            int oh = originalImage.Height;

            switch (mode)
            {
                case "HW"://指定高宽缩放（可能变形）                
                    break;
                case "W"://指定宽，高按比例                    
                    toheight = originalImage.Height * width / originalImage.Width;
                    break;
                case "H"://指定高，宽按比例
                    towidth = originalImage.Width * height / originalImage.Height;
                    break;
                case "Cut"://指定高宽裁减（不变形）                
                    if ((double)originalImage.Width / (double)originalImage.Height > (double)towidth / (double)toheight)
                    {
                        oh = originalImage.Height;
                        ow = originalImage.Height * towidth / toheight;
                        y = 0;
                        x = (originalImage.Width - ow) / 2;
                    }
                    else
                    {
                        ow = originalImage.Width;
                        oh = originalImage.Width * height / towidth;
                        x = 0;
                        y = (originalImage.Height - oh) / 2;
                    }
                    break;
                default:
                    break;
            }

            //新建一个bmp图片
            System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight);

            //新建一个画板
            Graphics g = System.Drawing.Graphics.FromImage(bitmap);

            //设置高质量插值法
            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;

            //设置高质量,低速度呈现平滑程度
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

            //清空画布并以透明背景色填充
            g.Clear(Color.White);

            //在指定位置并且按指定大小绘制原图片的指定部分
            g.DrawImage(originalImage, new Rectangle(0, 0, towidth, toheight),
                new Rectangle(x, y, ow, oh),
                GraphicsUnit.Pixel);

            try
            {
                //以jpg格式保存缩略图
                bitmap.Save(thumbnailPath, System.Drawing.Imaging.ImageFormat.Jpeg);
            }
            catch (System.Exception e)
            {
                throw e;
            }
            finally
            {
                originalImage.Dispose();
                bitmap.Dispose();
                g.Dispose();
            }
        }
        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}